chappatte



(No Model.)

B. G. GH-APPATTE.

WATCH CASE.

Patented Nov. 8, 1887.

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UNITED STATES EETCE.

PATENT EDWARD O. OHAPPATTE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TQ THE KEYSTONE WATCH CASE COMPANY, OF SAME PLACE.

WATCH-CASE.

SPECIPICATIONforming part of Letters Patent No. 373,011, dated November 8, 1887.

Application filed August 12, 1887. Serial No. 2-l6.758. (No model.)

To all whom it may concern:

Be it known that I, EDWARD O. GHAPPATTE, of the city and county of Philadelphia, and State of Pennsylvania, have invented an I111- provement in Watch-Cases, of which the following is a specification.

My invention has reference to watch-cases; and it consists in certain improvements,all of which are fully set forth in the followingspecification,and shown in the accompanying drawings, which form part thereof.

Heretofore in the manufacture of ornamented watch-cases it has been customary to secure the ornaments to the case-back by small screws, or by solder, or both. These methods of fastening'are laborious and expensive and more or less unreliable.

It has also been customary to produce an ornamental effect in watch-cases by boring holes through the case and securing precious stones therein, as set out in Patent N 0. 361,168, and also to secure the stones in the ordinary way in the cap or inside back and allow them to show through openings in the case lid orb-ack, as shown in'Patent No. 325,433; and it has further been proposed to attach imitation stones formed of glass to metal or frames by casting to the glass a circumferential plate, which is received in a groove in the edge of the opening in the metal orframe, as shown in Patent No. 250,378. These devices are entirely different from my construction in every particular, and I make no claim to anything set out or shown in said patents.

The object of my invention is to overcome these objections by providing the ornament designed for attachment with an annular or tubular projecting rim, which fits through a hole in the case-back, and is then expanded in a manner suitable to secure the ornament to the said back. ,The ornament may be of any design, that shown in the drawings being a star with a jewel in its center. This isavery common design in practice. I

In the drawings, Figure l is a plan view of a watch-case embodying my invention. Fig.

2 is a cross-section of the ornament after it leaves the dies. Fig. 3 is a similar view of the ornament after being finished ready for attachment to the back and Fig. 4 is a section of Fig. 1 on line 00 as, showing method of attachment of the ornament to the back.

A is the back, and B is the ornament. This ornament consists of a piece, 0, stamped or cast in any desired form or design, and is provided on the bottom or under surface with a projection, D, as shown in Fig. 2. This pieceis next drilled out, as shown in Fig. 3, forming the projection D into an annular or tubular rim, F, and, if desired, providing a support for the jewel H. The cover A is then bored through to form a hole, G, which is preferably reamed out to form the taper g. The ornament is then placed in position with the tubular projection F extending through the hole G. This tubular part F is then expanded or upset, so as to bind in the ornament, as shown in Fig. i.

I do not consider it essential to my invention that the projection D be bored through,

as the ornament may be secured by expanding or upsetting the edges to hold it in place on the back; but I prefer the construction as illustrated in Fig. 4.

Having now described my invention,whatJ claim as new, and desire to secure by Letters Patent, is

1. In an ornamented watch-case, the back having a taperedhole provided with an ornament having an extension projecting from its under sides, fitted through the hole in the back, and upset therein to clamp the ornament to the back.

2. In an ornamented watch-case, the back having a tapered hole provided with an ornament having a tubular or annular projection or rim projecting from its under side, fitted through the hole in the back, and upset therein to clamp the ornament to the back.

In testimony of which invention Ihereunto set my hand. EDWARD O. OHAPPATTE. Witnesses:

CHARLES P. BLIGHT, H. L. ROBERTS. 

